Terms used as applied to Data (and some Voice) Transmission over Copper Wire

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G.703 -- ITU-T designation for 2.048Kbps interface recommendation. See: E1

G.704 -- ITU-T recommendation for synchronous frame structures used at 1544, 6312, 2048, 8488 and 44736Kbit/s hierarchical levels

G.804 -- ITU-T recommendation for ATM cell mapping into digital hierarchy.

Gateway-A hardware and/or software set-up that translates between two dissimilar protocols, for example Prodigy has a gateway that translates between its internal, proprietary e-mail format and Internet e-mail format. More loosely defined as a gateway to any mechanism for providing access to another system, e.g. AOL might be called a gateway to the Internet.

Groomed - Refers to the provisioning of a higher level grouping to detailing into lower increments.  For instance, a single DS1 (aka T1) may be 'groomed' into 28 DS0's, or may be 'groomed' into a Single 1.544mbps channel.

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Copyright 1997-2008 Floyd Kling 
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